au
名詞
1.
オーストラリア
a unit of measurement equal to 149.6 million kilometers, the mean distance from the center of the earth to the center of the sun.
Lingolandでこの単語を学ぶ
オーストラリア
a unit of measurement equal to 149.6 million kilometers, the mean distance from the center of the earth to the center of the sun.